High-resolution structural characterization and magnetic properties of epitaxial Ce-doped yttrium iron garnet thin films

Zhong Li; Amit Vikram Singh; Ankur Rastogi; Jaume Gazquez; Albina Y. Borisevich; Rohan Mishra; Arunava Gupta

doi:10.1088/2053-1591/aa710f

High-resolution structural characterization and magnetic properties of epitaxial Ce-doped yttrium iron garnet thin films

Zhong Li, Amit Vikram Singh, Ankur Rastogi, Jaume Gazquez, Albina Y. Borisevich, Rohan Mishra, Arunava Gupta

electron Microscopy and Microanalysis

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Thin films of magnetic garnet materials, e.g. yttrium iron garnet (Y3Fe5O12, YIG), are useful for a variety of applications including microwave integrated circuits and spintronics. Substitution of rare earth ions, such as cerium, is known to enhance the magneto-optic Kerr effect (MOKE) as compared to pure YIG. Thin films of Ce0.75Y2.25Fe5O12 (Ce:YIG) have been grown using the pulsed laser deposition (PLD) technique and their crystal structure examined using high resolution scanning transmission electron microscopy. Homogeneous substitution of Ce in YIG, without oxidation to form a separate CeO2 phase, can be realized in a narrow process window with resulting enhancement of the MOKE signal. The thermally generated signal due to spin Seebeck effect for the optimally doped Ce:YIG films has also been investigated.

Original language	English
Article number	076101
Journal	Materials Research Express
Volume	4
Issue number	7
DOIs	https://doi.org/10.1088/2053-1591/aa710f
State	Published - Jul 2017

Keywords

Ce:YIG
MOKE
PLD
STEM
Spin Seebeck effect
Thermoelectrics
Thin film

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10.1088/2053-1591/aa710f

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title = "High-resolution structural characterization and magnetic properties of epitaxial Ce-doped yttrium iron garnet thin films",

abstract = "Thin films of magnetic garnet materials, e.g. yttrium iron garnet (Y3Fe5O12, YIG), are useful for a variety of applications including microwave integrated circuits and spintronics. Substitution of rare earth ions, such as cerium, is known to enhance the magneto-optic Kerr effect (MOKE) as compared to pure YIG. Thin films of Ce0.75Y2.25Fe5O12 (Ce:YIG) have been grown using the pulsed laser deposition (PLD) technique and their crystal structure examined using high resolution scanning transmission electron microscopy. Homogeneous substitution of Ce in YIG, without oxidation to form a separate CeO2 phase, can be realized in a narrow process window with resulting enhancement of the MOKE signal. The thermally generated signal due to spin Seebeck effect for the optimally doped Ce:YIG films has also been investigated.",

keywords = "Ce:YIG, MOKE, PLD, STEM, Spin Seebeck effect, Thermoelectrics, Thin film",

author = "Zhong Li and Singh, {Amit Vikram} and Ankur Rastogi and Jaume Gazquez and Borisevich, {Albina Y.} and Rohan Mishra and Arunava Gupta",

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volume = "4",

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T1 - High-resolution structural characterization and magnetic properties of epitaxial Ce-doped yttrium iron garnet thin films

AU - Li, Zhong

AU - Singh, Amit Vikram

AU - Rastogi, Ankur

AU - Gazquez, Jaume

AU - Borisevich, Albina Y.

AU - Mishra, Rohan

AU - Gupta, Arunava

PY - 2017/7

Y1 - 2017/7

N2 - Thin films of magnetic garnet materials, e.g. yttrium iron garnet (Y3Fe5O12, YIG), are useful for a variety of applications including microwave integrated circuits and spintronics. Substitution of rare earth ions, such as cerium, is known to enhance the magneto-optic Kerr effect (MOKE) as compared to pure YIG. Thin films of Ce0.75Y2.25Fe5O12 (Ce:YIG) have been grown using the pulsed laser deposition (PLD) technique and their crystal structure examined using high resolution scanning transmission electron microscopy. Homogeneous substitution of Ce in YIG, without oxidation to form a separate CeO2 phase, can be realized in a narrow process window with resulting enhancement of the MOKE signal. The thermally generated signal due to spin Seebeck effect for the optimally doped Ce:YIG films has also been investigated.

AB - Thin films of magnetic garnet materials, e.g. yttrium iron garnet (Y3Fe5O12, YIG), are useful for a variety of applications including microwave integrated circuits and spintronics. Substitution of rare earth ions, such as cerium, is known to enhance the magneto-optic Kerr effect (MOKE) as compared to pure YIG. Thin films of Ce0.75Y2.25Fe5O12 (Ce:YIG) have been grown using the pulsed laser deposition (PLD) technique and their crystal structure examined using high resolution scanning transmission electron microscopy. Homogeneous substitution of Ce in YIG, without oxidation to form a separate CeO2 phase, can be realized in a narrow process window with resulting enhancement of the MOKE signal. The thermally generated signal due to spin Seebeck effect for the optimally doped Ce:YIG films has also been investigated.

KW - Ce:YIG

KW - MOKE

KW - PLD

KW - STEM

KW - Spin Seebeck effect

KW - Thermoelectrics

KW - Thin film

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DO - 10.1088/2053-1591/aa710f

M3 - Article

AN - SCOPUS:85027200402

SN - 2053-1591

VL - 4

JO - Materials Research Express

JF - Materials Research Express

IS - 7

M1 - 076101

ER -

High-resolution structural characterization and magnetic properties of epitaxial Ce-doped yttrium iron garnet thin films

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